If it is what I had NO stomach pill is going to work (they gave me Prevacid, Reglan (I think that was the name) and nothing worked - except Xanax! Another thing to see if it is a spasm (which did work for me only after months of suffering with it), is look way up at the ceiling by lifting your neck as high as it will go, stretching that area as hard as you can. If it's a spasm it should "release" a few minutes. I wouldn't go for any kinds of tests until you see what happens first. It also COULD be mucus, so just hang in there for a bit! How long has this been going on? If it's something like GERD, then the Prevacid WILL work. So just take it one step at a time.